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Here you can curve fit and surface fit your 2D and 3D data online with
a rich set of error histograms, error plots, curve plots, surface plots,
contour plots, VRML, auto-generated source code, and PDF file output.
If you're looking for quality curve fitting and surface fitting, this is the
site for you! Source code is available at the Google Code Repository.
To begin, select an equation family from the drop-down menus above or try
the "Function Finders" to help determine the best curve fit for your data.

WordPress.com is brought to you by some of the same folks who work on the open source blogging software available at WordPress.org.
Open source WordPress has been incredibly successful and risen from a handful of users to the most-used blog tool in its category. However, as easy-to-use as we could make the open source package, there was still a barrier in that it requires a hosting account, a database, FTP, and a whole alphabet soup of acronyms that make normal people like you and me dizzy.
We wanted to bring the WordPress experience to a larger audience. So we created WordPress.com, a hosted version of the open source package where you can start a blog in seconds without any technical knowledge. We’re a bit of an underdog, as there are much larger hosted blogging services such as Blogger that have been out for years, but when WordPress.org got started people said the blog software market was saturated and there wasn’t room for anything new. (The big players then were Greymatter and Movable Type.) We think we have something unique to bring to the table.
WordPress.com is under very active development, and we roll out updates almost every day. New features and services are driven by you so please use our feedback form to let us know what you want.
Almost everything on WordPress.com is free, and things that are currently free will remain free in the future, but we do offer paid a la carte upgrades for things like CSS editing and custom domains. How do we pay for everything? WordPress.com is run by Automattic which currently makes money from the aforementioned upgrades, blog services, Akismet anti-spam technology, and hosting partnerships.
We know there are a lot of places you could put your blog, and we’d be extra honored if you consider us. If you’re a current user and you dig what we’re doing, the best way you can help us out is to help a friend get set up as well. It also gives you more buddies for your blogroll.

CNRI Handle Extension for Firefox embeds a handle/DOI name resolver in the browser. It finds handles and DOI names used as references in web pages, in a variety of formats, sends them directly to the Handle System for resolution, and gets back current information about the identified entity, e.g., current location. The results of that handle resolution are used to determine browser behavior, e.g., display the current version of a document even if it has been moved since the creation of the reference.
After installing this extension in your Firefox browser, you will be able to directly access handle URIs like
hdl:4263537/4000
or Digital Object Identifier URIs like
doi:10.1000/1
by typing them into the address bar, clicking on links with such references, or even having one as the source of an image.
Your browser will resolve these handles using the native Handle System protocol. What's more, if you do follow a link to a web-to-handle proxy server (e.g., http://hdl.handle.net/4263537/4000 or http://dx.doi.org/10.1000/1), your browser will recognize this and use the native Handle System protocol instead.
The extension will automatically detect if a firewall prevents direct handle resolution and will fall back to using a web-to-handle proxy server in that case.
A configuration option can turn off redirecting to URLs embedded in the handle values, allowing you to examine the structure of the handle record.

µTorrent (or uTorrent and commonly abbreviated as "µT" or "uT") is a freeware, closed source BitTorrent client by BitTorrent, Inc. It is available for Microsoft Windows, Mac OS X and Linux. Both versions are written in C++.[10] It gets the "µ" in its name from the SI prefix "micro" meaning one one-millionth and it refers to the program's small footprint. The program is designed to use minimal computer resources while offering functionality comparable to larger BitTorrent clients such as Vuze or BitComet.

LeechBlock is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.

Free browser add-on from Mozilla Labs that keeps your bookmarks, saved passwords, browsing history and open tabs backed up and synchronized, with end-to-end encryption for your privacy and security. Synchronize Your Firefox Experience Across Desktop and Mobile The Weave Browser Sync add-on for Firefox is now generally available to seamlessly bridge your desktop and mobile Firefox experiences. Using this free browser add-on from Mozilla Labs, you can securely access all of your personal data across all of your supported devices, making your Web experience instantly more personal and useful. Weave Browser Sync backs up and synchronizes your bookmarks, saved passwords, browsing history and open browser tabs. And all of your data is encrypted end-to-end to ensure your privacy. Future releases of Weave Browser Sync will add support for backing up and synchronizing your browser add-ons, search plugins and other customizations and ultimately everything that makes your Firefox and Web experience personal.

A Globally Recognized Avatar Your Gravatar is an image that follows you from site to site appearing beside your name when you do things like comment or post on a blog. Avatars help identify your posts on blogs and web forums, so why not on any site?